Patch by Brian Matherly.
language: en
tags:
- Video
+description: Show data based on properties of the producer.
+notes: |
+ The data show filter uses data provided by the data feed filter.
+ The producer properties must supply: >
+ * The keyword text to be inserted in the form of:
+ meta.attr.[keyword].markup=[text to insert]
+
+ * The name of the properties to be used from the feed file in the form of:
+ meta.attr.[name]=1
+
+ * The text to be displayed in the form of:
+ meta.attr.[name].markup=[some text #keyword#]
+ (Keyword text is enclosed between #s.)
+
+ e.g.
+ melt file.dv meta.attr.sometext.markup="this is some text" meta.attr.titles=1 meta.attr.titles.markup=#sometext# -filter data_show dynamic=1
+ >
+ Two special keywords exist
+ * #timecode# shows the frame position as a timecode.
+ * #frame# shows the frame position as an integer.
+ e.g.
+ melt file.dv meta.attr.timecode=1 meta.attr.timecode.markup=#timecode# -attach data_feed:attr_check -attach data_show:custom_file.properties dynamic=1
+ (where the file "custom_file" contains a filter definition by the name of "timecode")
+parameters:
+ - identifier: argument
+ title: Feed Properties File
+ type: string
+ required: no
+ readonly: no
+ default: data_fx.properties
+ widget: fileopen
+
+ - identifier: resource
+ title: Feed Properties File
+ type: string
+ required: no
+ readonly: yes
+ default: data_fx.properties
+ widget: fileopen
+
+ - identifier: dynamic
+ title: Dynamic
+ type: integer
+ default: 0
+ minimum: 0
+ maximum: 1
+ widget: checkbox
language: en
tags:
- Video
+description: Adjust image luma using a non-linear power-law curve.
+parameters:
+ - identifier: argument
+ title: Gamma
+ type: double
+ description: The exponential factor of the power-law curve
+ default: 1.0
+ - identifier: gamma
+ title: Gamma
+ type: double
+ description: See "argument"
+ mutable: yes
+ default: 1.0
language: en
tags:
- Video
+description: Convert colour image to greyscale
\ No newline at end of file
language: en
tags:
- Video
+description: |
+ Applies a luma transition between the current and next frames. Useful for
+ transitions from a slideshow created using producer pixbuf.
+parameters:
+ - identifier: argument
+ title: File
+ type: string
+ description: The luma map file to be used for the transition
+ - identifier: period
+ title: Period
+ type: integer
+ description: >
+ How long to wait between success iterations of the transition. For best
+ results set this to a multiple of ttl used in pixbuf.
+ mutable: yes
+ default: 24
+ - identifier: luma.*
+ title: Luma Properties
+ description: >
+ All properties beginning with "luma." are passed to the encapsulated luma
+ transition. For example, luma.out controls the duration of the wipe.
+ mutable: yes
language: en
tags:
- Video
+description: Overlay text or images onto the video
+notes: |
+ The watermark filter combines a frame producer and a composite transition to
+ overlay the specified text or image onto the video.
+
+ Supplying a filename with extension ".txt" causes the loader to load a pango
+ producer. Supplying a file name with an extension supported by gtk-pixbuf
+ causes the loader to load a pixbuf producer. See the pango and pixbuf
+ producers for details.
+
+ Note: If the filename begins with "+" the pango producer interprets the
+ filename as pango text.
+
+ Text Example:
+ melt colour:red -filter watermark:"+First Line~Second Line.txt" composite.progressive=1 producer.align=centre composite.valign=c composite.halign=c
+
+ Image Example:
+ melt clip.dv -filter watermark:logo.png
+
+parameters:
+ - identifier: argument
+ title: File or Text
+ type: string
+ description: A pango or pixbuf producer file name.
+ required: no
+ readonly: no
+ default: unset
+ widget: fileopen
+
+ - identifier: resource
+ title: File or Text
+ type: string
+ description: see argument
+ required: no
+ readonly: no
+ default: unset
+ widget: fileopen or text
+
+ - identifier: distort
+ title: Allow distorted scaling
+ type: integer
+ default: 0
+ minimum: 0
+ maximum: 1
+ widget: checkbox
+
+ - identifier: producer
+ title: Pango or Pixbuf producer
+ type: producer
+ description: |
+ A pango or pixbuf producer (as appropriate for the file name).
+ Properties may be set on the producer to control its behavior.
+ e.g.: producer.align=centre
+ See "pango" and "pixbuf" producers for details.
+ readonly: no
+
+ - identifier: composite
+ title: Composite Transition
+ type: transition
+ description: |
+ The transition that combines the images from the pango or pixbuf producer
+ with the images from the track.
+ Properties may be set on the composite to control its behavior.
+ e.g.: composite.valign=c
+ See "composite" transition for details.
+ readonly: no
language: en
tags:
- Video
+description: A simple color generator.
+parameters:
+ - identifier: argument
+ title: Color value
+ description: |
+ A color value is a hexadecimal representation of RGB plus alpha channel
+ as 0xrrggbbaa. Colors can also be the words: white, black, red, green,
+ or blue.
+ type: string
+ required: no
+ readonly: no
+ default: black
+ widget: textbox
+
+
tags:
- Audio
- Video
+description: White noise producer
+parameters:
+ - identifier: in
+ title: In point
+ type: time
+ description: Set the start time offset to use within the clip
+ readonly: no
+ mutable: no
+ minimum: 0
+ default: 0
+ widget: timecode
+
+ - identifier: out
+ title: Out point
+ type: time
+ description: Set the ending time offset to use within the clip
+ readonly: no
+ minimum: 0
+ mutable: no
+ widget: timecode
+
+ - identifier: fps
+ title: Frame Rate
+ type: double
+ description: The output frame rate of the producer
+ readonly: yes
+
+ - identifier: aspect_ratio
+ title: Aspect Ratio
+ type: double
+ description: The sample aspect ratio of the producer
+ readonly: yes
+
+ - identifier: length
+ title: Length
+ type: time
+ description: The duration of the file (in frames)
+ readonly: yes
+ widget: timecode
tags:
- Audio
- Video
+description: A libdv based decoder for video and audio.
+parameters:
+ - identifier: argument
+ title: Filename
+ description: The name of a .dv file.
+ type: string
+ required: yes
+ readonly: no
+ default: <null>
+ widget: fileopen
+
+ - identifier: in
+ title: In point
+ type: time
+ description: Set the start time offset to use within the clip
+ readonly: no
+ mutable: no
+ minimum: 0
+ default: 0
+ widget: timecode
+
+ - identifier: out
+ title: Out point
+ type: time
+ description: Set the ending time offset to use within the clip
+ readonly: no
+ minimum: 0
+ mutable: no
+ widget: timecode
+
+ - identifier: resource
+ title: Resource
+ type: string
+ description: The location of the file
+ readonly: yes
+
+ - identifier: fps
+ title: Frame Rate
+ type: double
+ description: The output frame rate of the producer
+ readonly: yes
+
+ - identifier: length
+ title: Length
+ type: time
+ description: The duration of the file (in frames)
+ readonly: yes
+ widget: timecode
+
+ - identifier: quality
+ title: Quality
+ type: string
+ description: One of "best," "fast" or anything else chooses medium.
+ readonly: no
+ mutable: yes
+ widget: combobox
language: en
tags:
- Video
+description: |
+ A title generator that uses the Pango international text layout and Freetype2
+ font renderer.
+notes: |
+ Supplying a filename with extension ".txt" causes the loader producer to load
+ with pango. If the filename begins with "+" the pango producer interprets the
+ filename as pango text. This is a shortcut to embed titles in melt commands.
+ For MLT XML, it is recommended that you embed the title text in the property
+ value.
+
+ Pango has builtin scaling. It will rescale the originally rendered title to
+ whatever the consumer requests. Therefore, it will lose its aspect ratio if
+ so requested, and it is up to the consumer to request a proper width and
+ height that maintains the image aspect.
+
+parameters:
+ - identifier: argument
+ title: File
+ type: string
+ description: |
+ A text file containing Pango markup, see:
+ http://developer.gnome.org/doc/API/2.0/pango/PangoMarkupFormat.html
+ requires xml-like encoding special chars from:
+ <, >, & -to- <, >, &
+ readonly: no
+ required: yes
+ mutable: no
+ widget: fileopen # could provide a button to use a file-open dialog
+
+ - identifier: in
+ title: In point
+ type: time
+ description: Set the start time offset to use within the clip
+ readonly: no
+ mutable: no
+ minimum: 0
+ default: 0
+ widget: timecode
+
+ - identifier: out
+ title: Out point
+ type: time
+ description: Set the ending time offset to use within the clip
+ readonly: no
+ minimum: 0
+ mutable: no
+ widget: timecode
+
+ - identifier: markup
+ title: Markup
+ type: string
+ description: |
+ A string containing Pango markup see:
+ http://developer.gnome.org/doc/API/2.0/pango/PangoMarkupFormat.html
+ requires xml-like encoding special chars from:
+ <, >, & -to- <, >, &
+ readonly: no
+ mutable: yes
+ widget: textbox
+
+ - identifier: fgcolour
+ title: Foreground Colour
+ type: string
+ description: an RGBA colour specification of the text (i.e. 0xrrggbbaa)
+ readonly: no
+ mutable: yes
+ widget: colorpicker
+
+ - identifier: bgcolour
+ title: Background Colour
+ type: string
+ description: an RGBA colour of the background rectangle (i.e. 0xrrggbbaa)
+ readonly: no
+ mutable: yes
+ widget: colorpicker
+
+ - identifier: align
+ title: Paragraph Alignment
+ type: string
+ description: |
+ left, centre, right (also, numbers 0, 1 and 2 can be used respectively)
+ readonly: no
+ mutable: yes
+ widget: combobox
+
+ - identifier: pad
+ title: Padding
+ type: integer
+ description: |
+ The number of pixels to pad the background rectangle beyond edges of text.
+ readonly: no
+ default: 0
+ mutable: yes
+ widget: spinner
+
+ - identifier: text
+ title: Text
+ type: string
+ description: |
+ A non-markup string in UTF-8 encoding
+ (can contain markup chars un-encoded)
+ readonly: no
+ mutable: yes
+ widget: textbox
+
+ - identifier: font
+ title: Font
+ type: string
+ description: The default typeface to use when not using markup.
+ default: "Sans 48". FreeType2 renders at 72 dpi.
+ readonly: no
+ mutable: yes
+ widget: combobox
+
+ - identifier: weight
+ title: Font Weight
+ type: integer
+ description: The weight of the font.
+ default: 400
+ readonly: no
+ mutable: yes
+ widget: spinner
+
+ - identifier: encoding
+ title: Encoding
+ type: string
+ description: |
+ The text encoding type of the input if not UTF-8.
+ See 'iconv --list' for a list of possible inputs.
+ default: UTF-8
+ readonly: no
+ mutable: yes
+ widget: combobox
+
+ - identifier: resource
+ title: Resource
+ type: string
+ description: The text/markup file or "pango" if no file.
+ readonly: yes
+
+ - identifier: real_width
+ title: Real Width
+ type: integer
+ description: The original, unscaled width of the rendered title.
+ readonly: yes
+
+ - identifier: real_height
+ title: Real Height
+ type: integer
+ description: The original, unscaled height of the rendered title.
+ readonly: yes
+
+ - identifier: width
+ title: Width
+ type: integer
+ description: The last requested scaled image width.
+ readonly: yes
+
+ - identifier: height
+ title: Height
+ type: integer
+ description: The last requested scaled image height.
+ readonly: yes
\ No newline at end of file
language: en
tags:
- Video
+description: |
+ A still graphics to video generator using gdk-pixbuf
+notes: |
+ Pixbuf has builtin scaling. It will rescale the originally rendered title to
+ whatever the consumer requests. Therefore, it will lose its aspect ratio if
+ so requested, and it is up to the consumer to request a proper width and
+ height that maintains the image aspect.
+
+parameters:
+ - identifier: argument
+ title: File
+ type: string
+ description:
+ - >
+ The name of a graphics file loadable by a gdk-pixbuf loader.
+ See /usr/lib/gdk-pixbuf/loaders
+ definitely png, jpeg, tiff, pnm, and xpm
+ - >
+ If "%" in filename, the filename is used with sprintf generate a
+ filename from a counter for multi-file/flipbook animation. The file
+ sequence ends when numeric discontinuity >100.
+ - >
+ If filename contains "/.all.", suffix with an extension to load all
+ pictures with matching extension from a directory.
+ - >
+ If filename contains the string "<svg", then pixbuf tries to load the
+ filename as inline SVG XML, which is convenient for melt commands.
+ readonly: no
+ required: yes
+ mutable: no
+ widget: fileopen # could provide a button to use a file-open dialog
+
+ - identifier: in
+ title: In point
+ type: time
+ description: Set the start time offset to use within the clip
+ readonly: no
+ mutable: no
+ minimum: 0
+ default: 0
+ widget: timecode
+
+ - identifier: out
+ title: Out point
+ type: time
+ description: Set the ending time offset to use within the clip
+ readonly: no
+ minimum: 0
+ mutable: no
+ widget: timecode
+
+ - identifier: begin
+ title: Begin
+ type: integer
+ description: When using an image sequence, this sets the starting number.
+ readonly: no
+ minimum: 0
+ mutable: no
+ widget: spinner
+
+ - identifier: ttl
+ title: Time To Live
+ type: integer
+ description: How long (in frames) to repeat each picture in file sequences.
+ readonly: no
+ default: 25
+ minimum: 0
+ mutable: yes
+ widget: spinner
+
+ - identifier: resource
+ title: Resource
+ type: string
+ description: File location. See "argument" above.
+ readonly: yes
+
+ - identifier: real_width
+ title: Real Width
+ type: integer
+ description: The original, unscaled width of the rendered title.
+ readonly: yes
+
+ - identifier: real_height
+ title: Real Height
+ type: integer
+ description: The original, unscaled height of the rendered title.
+ readonly: yes
+
+ - identifier: width
+ title: Width
+ type: integer
+ description: The last requested scaled image width.
+ readonly: yes
+
+ - identifier: height
+ title: Height
+ type: integer
+ description: The last requested scaled image height.
+ readonly: yes
language: en
tags:
- Audio
+description: |
+ OGG Vorbis file reader.
+parameters:
+ - identifier: argument
+ title: File
+ type: string
+ description: File to use (only .ogg supported at the moment)
+ readonly: no
+ required: yes
+ mutable: no
+ widget: fileopen
+
+ - identifier: resource
+ title: Resource
+ type: string
+ description: File location. See "argument" above.
+ readonly: yes
+
+ - identifier: in
+ title: In point
+ type: time
+ description: Set the start time offset to use within the clip
+ readonly: no
+ mutable: no
+ minimum: 0
+ default: 0
+ widget: timecode
+
+ - identifier: out
+ title: Out point
+ type: time
+ description: Set the ending time offset to use within the clip
+ readonly: no
+ minimum: 0
+ mutable: no
+ widget: timecode
+
+ - identifier: fps
+ title: Frame Rate
+ type: double
+ description: The output frame rate of the producer
+ readonly: yes
\ No newline at end of file
tags:
- Audio
- Video
+description: |
+ Construct a service network from an XML description. See docs/mlt-xml.txt.
+parameters:
+ - identifier: argument
+ title: URL
+ type: string
+ description: |
+ An XML text file containing MLT XML
+ Since MLT XML files can be parameterised, the URL syntax is:
+ {file-name}[?{param-name}{'='|':'}{param-value}[&{param-name}{'='|':'}{param-value}...]]
+ A colon is allowed instead of an equal sign to pacify melt, who tokenises
+ anything with an equal sign as a property setting. Also, when running
+ melt from the shell, beware of the '?' and shell filename expansion. You
+ can surround the URL with single quotations to prevent expansion.
+ Finally, the loader will fail to match the filename when you use
+ parameters, so preface the url with 'xml:' to force the loader to load
+ with the xml service.
+ readonly: no
+ required: yes
+ mutable: no
+ widget: fileopen
+
+ - identifier: resource
+ title: Resource
+ type: string
+ description: File location. See "argument" above.
+ readonly: yes
projects / mlt / commitdiff